Brandon Webb won the most games for the Diamondbacks in 2005, with 14 wins.

	NAME	W	SEASON	TM	L	W%	G	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Brandon Webb B. Webb	14	2005	ARI	12	.538	33	33	3.54	172	1	0	0	229.0	229	90	98	21	59	2	0	4	943	14	6.76	2.32	2.92	0.83	18.2	6.3	1.26	.302	3.85	80	3.50	80	9.00	21.9
2	Javier Vazquez J. Vazquez	11	2005	ARI	15	.423	33	33	4.42	192	3	1	0	215.2	223	106	112	35	46	5	0	4	904	7	8.01	1.92	4.17	1.46	21.2	5.1	1.25	.300	4.67	100	4.05	93	9.31	7.8
3	Claudio Vargas C. Vargas	9	2005	ARI	6	.600	21	19	4.81	90	0	0	0	119.2	124	64	66	21	40	7	0	3	520	6	6.77	3.01	2.25	1.58	17.3	7.7	1.37	.285	4.96	109	4.97	113	9.33	-7.5
4	Brad Halsey B. Halsey	8	2005	ARI	12	.400	28	26	4.61	82	0	0	0	160.0	191	82	101	20	39	9	1	3	700	2	4.61	2.19	2.10	1.13	11.7	5.6	1.44	.311	5.68	104	4.51	103	10.74	-2.1
5	Lance Cormier L. Cormier	7	2005	ARI	3	.700	67	0	5.11	63	0	0	0	79.1	86	45	50	7	43	5	13	5	356	6	7.15	4.88	1.47	0.79	17.7	12.1	1.63	.332	5.67	115	4.38	100	9.76	0
6	Shawn Estes S. Estes	7	2005	ARI	8	.467	21	21	4.80	63	2	0	0	123.2	132	66	70	15	45	4	0	0	535	4	4.58	3.27	1.40	1.09	11.8	8.4	1.43	.287	5.09	108	4.76	109	9.61	-4.9
7	Russ Ortiz R. Ortiz	5	2005	ARI	11	.313	22	22	6.89	46	0	0	0	115.0	147	88	92	18	65	4	0	3	551	5	3.60	5.09	0.71	1.41	8.3	11.8	1.84	.309	7.20	155	6.04	138	11.50	-20.6
8	Brandon Medders B. Medders	4	2005	ARI	1	.800	27	0	1.78	31	0	0	0	30.1	21	6	6	2	11	1	10	0	122	1	9.20	3.26	2.82	0.59	25.4	9.0	1.05	.247	1.78	40	3.01	69	6.23	4.5
9	Jose Valverde J. Valverde	3	2005	ARI	4	.429	61	0	2.44	75	0	0	15	66.1	51	18	19	5	20	2	34	1	268	3	10.18	2.71	3.75	0.68	28.0	7.5	1.07	.277	2.58	55	2.72	62	6.92	11.9
10	Mike Koplove M. Koplove	2	2005	ARI	1	.667	44	0	5.07	28	0	0	0	49.2	48	28	31	6	20	6	11	3	217	1	5.07	3.62	1.40	1.09	12.9	9.2	1.37	.268	5.62	115	5.02	115	8.70	-3.4
11	Oscar Villarreal O. Villarreal	2	2005	ARI	0	1.000	11	0	5.27	5	0	0	0	13.2	11	8	8	2	6	1	0	2	57	0	3.29	3.95	0.83	1.32	8.8	10.5	1.24	.209	5.27	119	5.72	131	7.24	-2
12	Brian Bruney B. Bruney	1	2005	ARI	3	.250	47	0	7.43	51	0	0	12	46.0	56	38	39	6	35	5	21	2	230	2	9.98	6.85	1.46	1.17	22.2	15.2	1.98	.376	7.63	168	5.10	117	10.96	-3.5
13	Jason Bulger J. Bulger	1	2005	ARI	0	1.000	9	0	5.40	9	0	0	0	10.0	14	6	6	1	5	0	5	1	48	0	8.10	4.50	1.80	0.90	18.8	10.4	1.90	.394	5.40	122	4.01	92	12.60	0.4
14	Javier Lopez J. Lopez	1	2005	ARI	1	.500	29	0	9.42	11	0	0	2	14.1	19	15	15	2	11	1	5	3	74	0	6.91	6.91	1.00	1.26	14.9	14.9	2.09	.347	9.42	213	5.80	133	11.93	-2.2
15	Dustin Nippert D. Nippert	1	2005	ARI	0	1.000	3	3	5.52	11	0	0	0	14.2	10	9	9	1	13	1	0	0	68	1	6.75	7.98	0.85	0.61	16.2	19.1	1.57	.214	5.52	125	5.26	120	6.14	-1.4
16	Tim Worrell T. Worrell	1	2005	ARI	1	.500	32	0	2.27	22	0	0	0	31.2	30	8	13	4	9	1	8	2	137	0	6.25	2.56	2.44	1.14	16.1	6.6	1.23	.257	3.69	51	4.21	96	8.53	0.6